20518388748

Names of 20518388748

• Cardinal: 20518388748 can be written as Twenty billion, five hundred eighteen million, three hundred eighty-eight thousand, seven hundred forty-eight.

Scientific notation

• Scientific notation: 2.0518388748 × 10¹⁰

Factors of 20518388748

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 2598

Divisors of 20518388748

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 6 9 11 12 13 17 18 22 26 27 31 33 34 36 39 44 51 52 54 62 66 68 78 93 99 102 108 117 124 132 143 153 156 186 187 198 204 221 234 279 286 297 306 341 351 372 374 396 403 429 442 459 468 527 558 561 572 594 612 663 682 702 748 806 837 858 884 918 1023 1054 1116 1122 1188 1209 1287 1326 1364 1404 1581 1612 1674 1683 1716 1836 1989 2046 2108 2244 2418 2431 2521 2574 2652 3069 3162 3348 3366 3627 3861 3978 4092 4433 4743 4836 4862 5042 5049 5148 5797 5967 6138 6324 6732 6851 7254 7293 7563 7722 7956 8866 9207 9486 9724 10084 10098 10881 11594 11934 12276 13299 13702 14229 14508 14586 15126 15444 17391 17732 18414 18972 20196 20553 21762 21879 22689 23188 23868 26598 27404 27731 28458 29172 30252 32773 34782 36828 39897 41106 42857 43524 43758 45378 52173 53196 55462 56916 61659 65546 65637 68067 69564 75361 78151 79794 82212 83193 85714 87516 90756 98319 104346 110924 119691 123318 128571 131092 131274 136134 150722 156302 156519 159588 166386 171428 184977 196638 208692 226083 234453 239382 246636 249579 257142 262548 272268 294957 301444 312604 313038 332772 360503 369954 385713 393276 452166 468906 471427 478764 499158 514284 557141 589914 626076 678249 703359 721006 739908 748737 771426 859661 884871 904332 937812 942854 998316 1015963 1081509 1114282 1157139 1179828 1328567 1356498 1406718 1414281 1442012 1497474 1542852 1671423 1719322 1769742 1885708 2031926 2034747 2110077 2163018 2228564 2314278 2578983 2657134 2712996 2813436 2828562 2994948 3047889 3244527 3342846 3438644 3539484 3985701 4063852 4069494 4220154 4242843 4326036 4628556 5014269 5157966 5314268 5657124 6095778 6128551 6489054 6685692 7736949 7971402 8138988 8440308 8485686 9143667 9733581 10028538 10315932 11175593 11957103 12191556 12257102 12728529 12978108 14614237 15042807 15473898 15942804 16971372 17271371 18287334 18385653 19467162 20057076 22351186 23210847 23914206 24514204 25457058 27431001 29228474 30085614 30947796 33526779 34542742 35871309 36574668 36771306 38934324 43842711 44702372 46421694 47828412 50914116 51814113 54862002 55156959 58456948 60171228 67053558 69085484 71742618 73542612 87685422 92843388 100580337 103628226 109724004 110313918 131528133 134107116 143485236 155442339 165470877 175370844 189985081 201160674 207256452 220627836 263056266 301741011 310884678 330941754 379970162 394584399 402321348 466327017 526112532 569955243 603482022 621769356 661883508 759940324 789168798 932654034 1139910486 1206964044 1578337596 1709865729 1865308068 2279820972 3419731458 5129597187 6839462916 10259194374 20518388748
• Sum of all divisors σ(n): 68333690880
• Sum of proper divisors (its aliquot sum) s(n): 47815302132
• 20518388748 is an abundant number, because the sum of its proper divisors (47815302132) is greater than itself. Its abundance is 27296913384

Bases of 20518388748

• Binary: 10011000110111111011100010000001100₂
• Hexadecimal: 0x4C6FDC40C
• Base-36: 9FC4A30

Squares and roots of 20518388748

• 20518388748 squared (20518388748²) is 421004276814053007504
• 20518388748 cubed (20518388748³) is 8638329416241342517445633164992
• The square root of 20518388748 is 143242.4125320431
• The cube root of 20518388748 is 2737.6699225729

Scales and comparisons

• 20,518,388,748 seconds is equal to 652 years, 21 weeks, 6 days, 8 hours, 25 minutes, 48 seconds.
• To count from 1 to 20,518,388,748 would take you about one thousand, three hundred four years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 20518388748 cubic inches would be around 228.1 feet tall.

Recreational maths with 20518388748

• 20518388748 backwards is 84788381502
• 20518388748 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 20518388748's digits is 54
• More coming soon!